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    ELECTRODE WITH CONDUCTIVE INTERLAYER AND METHOD THEREOF
    1.
    发明申请
    ELECTRODE WITH CONDUCTIVE INTERLAYER AND METHOD THEREOF 有权

    公开(公告)号：US20220416256A1

    公开(公告)日：2022-12-29

    申请号：US17898050

    申请日：2022-08-29

    申请人： Sila Nanotechnologies, Inc.

    发明人： Gleb YUSHIN ,  Justin YEN ,  Jens STEIGER ,  Eniko ZSOLDOS ,  Mareva FEVRE ,  Adam KAJDOS ,  Weimin WANG

    IPC分类号： H01M4/88 ,  H01M4/38 ,  H01M4/62 ,  H01M10/0525

    摘要： In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).

    ANODE ELECTRODE COMPOSITION OF LI-ION BATTERY CELL
    3.
    发明申请
    ANODE ELECTRODE COMPOSITION OF LI-ION BATTERY CELL 审中-公开

    公开(公告)号：US20190123339A1

    公开(公告)日：2019-04-25

    申请号：US16164704

    申请日：2018-10-18

    申请人： Sila Nanotechnologies, Inc.

    发明人： Gleb YUSHIN ,  Laura GERBER ,  Adam KAJDOS ,  Justin YEN ,  Justin DOANE ,  Jens STEIGER

    IPC分类号： H01M4/134 ,  H01M10/0525 ,  H01M4/38 ,  H01M4/66 ,  H01M4/74 ,  H01M4/62

    摘要： In an embodiment, a Li-ion battery cell comprises an anode electrode with an electrode coating that (1) comprises Si-comprising active material particles, (2) exhibits an areal capacity loading in the range of about 3 mAh/cm2 to about 12 mAh/cm2, (3) exhibits a volumetric capacity in the range from about 600 mAh/cc to about 1800 mAh/cc in a charged state of the cell, (4) comprises conductive additive material particles, and (5) comprises a polymer binder that is configured to bind the Si-comprising active material particles and the conductive additive material particles together to stabilize the anode electrode against volume expansion during the one or more charge-discharge cycles of the battery cell while maintaining the electrical connection between the metal current collector and the Si-comprising active material particles.

    LI-ION BATTERY CELL USING IMPROVED ANODE CURRENT COLLECTOR
    5.
    发明公开
    LI-ION BATTERY CELL USING IMPROVED ANODE CURRENT COLLECTOR 审中-公开

    公开(公告)号：US20240105984A1

    公开(公告)日：2024-03-28

    申请号：US18361437

    申请日：2023-07-28

    申请人： Sila Nanotechnologies, Inc.

    发明人： Sepideh PARVINIAN ,  Indrani BHATTACHARYYA ,  Michael PAVILONIS ,  Weimin WANG ,  Gaurav Rajpal SHARMA ,  Jens STEIGER

    IPC分类号： H01M10/0525 ,  H01M4/04 ,  H01M10/0587

    CPC分类号： H01M10/0525 ,  H01M4/0404 ,  H01M10/0587

    摘要： A lithium-ion battery and methods thereof are disclosed. In an aspect, the lithium-ion battery includes an anode component, a cathode component, a separator, and an electrolyte. The anode component includes an anode current collector and a respective anode coating on each side of the anode current collector. An anode coating includes composite particles including carbon and silicon. A mass fraction of the silicon in the composite particles of the anode coatings may be in a range of about 5 wt. % to about 70 wt. % of the anode coatings. The anode component undergoes a maximum areal expansion (Amax) during the multiple charging and discharging cycles. The anode current collector comprises a copper foil, the copper foil being characterized, before the respective anode coatings are formed thereon, by an ultimate tensile stress (UTS) and a strain at the UTS (εUTS).

    ELECTRODE WITH CONDUCTIVE INTERLAYER AND METHOD THEREOF
    7.
    发明申请
    ELECTRODE WITH CONDUCTIVE INTERLAYER AND METHOD THEREOF 审中-公开

    公开(公告)号：US20200083542A1

    公开(公告)日：2020-03-12

    申请号：US16563791

    申请日：2019-09-06

    申请人： Sila Nanotechnologies, Inc.

    发明人： Gleb YUSHIN ,  Justin YEN ,  Jens STEIGER ,  Eniko ZSOLDOS ,  Mareva FEVRE ,  Adam KAJDOS ,  Weimin WANG

    IPC分类号： H01M4/88 ,  H01M10/0525 ,  H01M4/62 ,  H01M4/38

    摘要： In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).